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                    集合
            
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                    队列-queue
            
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                    volatile&synchronized
            
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                    thread
            
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                    线程池的工作原理
            
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                    lock&ReentrantLock&ReadWriteLock
            
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                    Java并发工具- CountDownLatch&CyclicBarrier 
            
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                    Java同步工具类- CountDownLatch&CyclicBarrier&Semaphore  
            
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                    Java bean转Map 
            
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                    SpringBoot
            
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                    springboot集成mybatis-plus框架
            
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                    【分布式】sharding-jdbc实现分库分表
            
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                    SQL常用使用
            
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                    redis学习笔记
            
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                    Redis中的队列list实现秒杀活动抢购
            
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                    mysql绿色版安装服务教程
            
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                    缓存
            
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                    MySQL单表备份还原
            
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                    linux常用命令
            
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                    windows常用命令
            
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                    spring security 配置发生错误 Can't configure antMatchers after anyRequest
            
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                    AOP内获取了对请求流操作后报流已经关闭错误的问题
            
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        <li class="chapter " data-level="26.1" data-path="../tools/github/github_ssh.html">
            
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                    Github ssh key 解决提交后push频繁输入用户名和密码
            
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                                <div id="anchor-navigation-ex-navbar"><i class="fa fa-navicon"></i><ul><ul><li><span class="title-icon "></span><a href="#free-marker&#x81EA;&#x52A8;&#x751F;&#x6210;java-bean&#x4EE3;&#x7801;"><b></b>Free marker&#x81EA;&#x52A8;&#x751F;&#x6210;Java bean&#x4EE3;&#x7801;</a></li><ul><li><span class="title-icon "></span><a href="#1-&#x5BFC;&#x5165;freemarker&#x4F9D;&#x8D56;"><b></b>1. &#x5BFC;&#x5165;freemarker&#x4F9D;&#x8D56;</a></li><li><span class="title-icon "></span><a href="#2-&#x7F16;&#x5199;&#x751F;&#x6210;java&#x7C7B;&#x6240;&#x9700;&#x8981;&#x7684;&#x63CF;&#x8FF0;"><b></b>2. &#x7F16;&#x5199;&#x751F;&#x6210;Java&#x7C7B;&#x6240;&#x9700;&#x8981;&#x7684;&#x63CF;&#x8FF0;</a></li><li><span class="title-icon "></span><a href="#3-&#x7F16;&#x5199;&#x63CF;&#x8FF0;bean&#x7684;&#x5C5E;&#x6027;&#x7C7B;"><b></b>3. &#x7F16;&#x5199;&#x63CF;&#x8FF0;Bean&#x7684;&#x5C5E;&#x6027;&#x7C7B;</a></li><li><span class="title-icon "></span><a href="#4-&#x5236;&#x5B9A;&#x751F;&#x6210;java&#x7C7B;&#x7684;&#x6A21;&#x677F;"><b></b>4. &#x5236;&#x5B9A;&#x751F;&#x6210;Java&#x7C7B;&#x7684;&#x6A21;&#x677F;</a></li><li><span class="title-icon "></span><a href="#5-&#x6D4B;&#x8BD5;&#x751F;&#x6210;java&#x7C7B;"><b></b>5. &#x6D4B;&#x8BD5;&#x751F;&#x6210;Java&#x7C7B;</a></li><li><span class="title-icon "></span><a href="#6-&#x751F;&#x6210;java&#x7C7B;&#x6548;&#x679C;"><b></b>6. &#x751F;&#x6210;Java&#x7C7B;&#x6548;&#x679C;</a></li></ul></ul></ul></div><h2 id="free-marker&#x81EA;&#x52A8;&#x751F;&#x6210;java-bean&#x4EE3;&#x7801;"><a name="free-marker&#x81EA;&#x52A8;&#x751F;&#x6210;java-bean&#x4EE3;&#x7801;" class="anchor-navigation-ex-anchor" href="#free-marker&#x81EA;&#x52A8;&#x751F;&#x6210;java-bean&#x4EE3;&#x7801;"><i class="fa fa-link" aria-hidden="true"></i></a>Free marker&#x81EA;&#x52A8;&#x751F;&#x6210;Java bean&#x4EE3;&#x7801;</h2>
<p>&#x9879;&#x76EE;&#x4E2D;&#x7ECF;&#x5E38;&#x4F1A;&#x9047;&#x5230;&#x6839;&#x636E;&#x6570;&#x636E;&#x5E93;&#x8868;&#xFF0C;&#x7F16;&#x5199;Java bean&#xFF0C;&#x4E00;&#x65E6;&#x8868;&#x591A;&#xFF0C;&#x5B57;&#x6BB5;&#x591A;&#xFF0C;&#x5C31;&#x5F88;&#x9EBB;&#x70E6;&#xFF0C;&#x6240;&#x4EE5;&#x9700;&#x8981;&#x81EA;&#x52A8;&#x751F;&#x6210;&#x4EE3;&#x7801;</p>
<p>&#x5B66;&#x4E60;&#x4F7F;&#x7528;free marker&#x6A21;&#x677F;&#x8BED;&#x8A00;&#x6765;&#x81EA;&#x52A8;&#x751F;&#x6210;&#x4EE3;&#x7801;</p>
<h3 id="1-&#x5BFC;&#x5165;freemarker&#x4F9D;&#x8D56;"><a name="1-&#x5BFC;&#x5165;freemarker&#x4F9D;&#x8D56;" class="anchor-navigation-ex-anchor" href="#1-&#x5BFC;&#x5165;freemarker&#x4F9D;&#x8D56;"><i class="fa fa-link" aria-hidden="true"></i></a>1. &#x5BFC;&#x5165;freemarker&#x4F9D;&#x8D56;</h3>
<p>pom.xml</p>
<pre><code class="lang-xml"><span class="hljs-comment">&lt;!-- spring boot web --&gt;</span>
<span class="hljs-tag">&lt;<span class="hljs-name">dependency</span>&gt;</span>
    <span class="hljs-tag">&lt;<span class="hljs-name">groupId</span>&gt;</span>org.springframework.boot<span class="hljs-tag">&lt;/<span class="hljs-name">groupId</span>&gt;</span>
    <span class="hljs-tag">&lt;<span class="hljs-name">artifactId</span>&gt;</span>spring-boot-starter-web<span class="hljs-tag">&lt;/<span class="hljs-name">artifactId</span>&gt;</span>
<span class="hljs-tag">&lt;/<span class="hljs-name">dependency</span>&gt;</span>

<span class="hljs-comment">&lt;!-- spring boot &#x96C6;&#x6210; freemarker --&gt;</span>
<span class="hljs-tag">&lt;<span class="hljs-name">dependency</span>&gt;</span>
    <span class="hljs-tag">&lt;<span class="hljs-name">groupId</span>&gt;</span>org.springframework.boot<span class="hljs-tag">&lt;/<span class="hljs-name">groupId</span>&gt;</span>
    <span class="hljs-tag">&lt;<span class="hljs-name">artifactId</span>&gt;</span>spring-boot-starter-freemarker<span class="hljs-tag">&lt;/<span class="hljs-name">artifactId</span>&gt;</span>
<span class="hljs-tag">&lt;/<span class="hljs-name">dependency</span>&gt;</span>
</code></pre>
<p>&#x7531;&#x4E8E;&#x6211;&#x8FD9;&#x4E2A;&#x9879;&#x76EE;&#x662F;spring boot&#x5DE5;&#x7A0B;&#xFF0C;&#x6240;&#x4EE5;&#x5BFC;&#x5165;&#x7684;&#x662F;spring boot&#x76F8;&#x5173;&#x96C6;&#x6210;&#x4F9D;&#x8D56;</p>
<p>&#x82E5;&#x662F;&#x53EA;&#x7528;free marker&#xFF0C;&#x5219;&#x5BFC;&#x5165;&#xFF1A;</p>
<pre><code class="lang-xml"><span class="hljs-tag">&lt;<span class="hljs-name">dependency</span>&gt;</span>
  <span class="hljs-tag">&lt;<span class="hljs-name">groupId</span>&gt;</span>org.freemarker<span class="hljs-tag">&lt;/<span class="hljs-name">groupId</span>&gt;</span>
  <span class="hljs-tag">&lt;<span class="hljs-name">artifactId</span>&gt;</span>freemarker<span class="hljs-tag">&lt;/<span class="hljs-name">artifactId</span>&gt;</span>
  <span class="hljs-tag">&lt;<span class="hljs-name">version</span>&gt;</span>2.3.29<span class="hljs-tag">&lt;/<span class="hljs-name">version</span>&gt;</span>
<span class="hljs-tag">&lt;/<span class="hljs-name">dependency</span>&gt;</span>
</code></pre>
<h3 id="2-&#x7F16;&#x5199;&#x751F;&#x6210;java&#x7C7B;&#x6240;&#x9700;&#x8981;&#x7684;&#x63CF;&#x8FF0;"><a name="2-&#x7F16;&#x5199;&#x751F;&#x6210;java&#x7C7B;&#x6240;&#x9700;&#x8981;&#x7684;&#x63CF;&#x8FF0;" class="anchor-navigation-ex-anchor" href="#2-&#x7F16;&#x5199;&#x751F;&#x6210;java&#x7C7B;&#x6240;&#x9700;&#x8981;&#x7684;&#x63CF;&#x8FF0;"><i class="fa fa-link" aria-hidden="true"></i></a>2. &#x7F16;&#x5199;&#x751F;&#x6210;Java&#x7C7B;&#x6240;&#x9700;&#x8981;&#x7684;&#x63CF;&#x8FF0;</h3>
<p>&#x65B0;&#x5EFA;&#x4E00;&#x4E2A;&#x7C7B;&#xFF0C;&#x6765;&#x5B58;&#x653E;&#x751F;&#x6210;&#x4E00;&#x4E2A;Java&#x7C7B;&#x7684;&#x6240;&#x6709;&#x63CF;&#x8FF0;</p>
<pre><code class="lang-java"><span class="hljs-keyword">package</span> com.tianya.springboot.freemarker.code.entity;

<span class="hljs-keyword">import</span> java.util.List;

<span class="hljs-keyword">import</span> lombok.Builder;
<span class="hljs-keyword">import</span> lombok.Data;

<span class="hljs-comment">/**
 * <span class="hljs-doctag">@Description</span>: 
 * Java Bean&#x81EA;&#x52A8;&#x751F;&#x6210;
 * <span class="hljs-doctag">@author</span>: TianwYam
 * <span class="hljs-doctag">@date</span> 2021&#x5E74;5&#x6708;5&#x65E5; &#x4E0A;&#x5348;9:12:40
 */</span>
<span class="hljs-meta">@Data</span>
<span class="hljs-meta">@Builder</span>
<span class="hljs-keyword">public</span> <span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">JavaBeanGenerate</span> </span>{

    <span class="hljs-comment">// &#x5305;&#x540D;</span>
    <span class="hljs-keyword">private</span> String packageName ;

    <span class="hljs-comment">// &#x7C7B;&#x540D;</span>
    <span class="hljs-keyword">private</span> String className ;

    <span class="hljs-comment">// &#x5C5E;&#x6027;</span>
    <span class="hljs-keyword">private</span> List&lt;JavaBeanAttribute&gt; attributes ;

    <span class="hljs-comment">// &#x9700;&#x8981;&#x5BFC;&#x5165;&#x7684;&#x5305;</span>
    <span class="hljs-keyword">private</span> List&lt;String&gt; importClassList ;

    <span class="hljs-comment">// &#x751F;&#x6210;&#x7684;&#x6587;&#x4EF6;&#x9700;&#x8981;&#x4FDD;&#x5B58;&#x7684;&#x5168;&#x8DEF;&#x5F84;</span>
    <span class="hljs-keyword">private</span> String path ;

}
</code></pre>
<h3 id="3-&#x7F16;&#x5199;&#x63CF;&#x8FF0;bean&#x7684;&#x5C5E;&#x6027;&#x7C7B;"><a name="3-&#x7F16;&#x5199;&#x63CF;&#x8FF0;bean&#x7684;&#x5C5E;&#x6027;&#x7C7B;" class="anchor-navigation-ex-anchor" href="#3-&#x7F16;&#x5199;&#x63CF;&#x8FF0;bean&#x7684;&#x5C5E;&#x6027;&#x7C7B;"><i class="fa fa-link" aria-hidden="true"></i></a>3. &#x7F16;&#x5199;&#x63CF;&#x8FF0;Bean&#x7684;&#x5C5E;&#x6027;&#x7C7B;</h3>
<p>&#x63CF;&#x8FF0; Java bean&#x4E2D;&#x5C5E;&#x6027;&#x7684;</p>
<pre><code class="lang-java"><span class="hljs-keyword">package</span> com.tianya.springboot.freemarker.code.entity;

<span class="hljs-keyword">import</span> lombok.Builder;
<span class="hljs-keyword">import</span> lombok.Data;

<span class="hljs-comment">/**
 * <span class="hljs-doctag">@Description</span>: 
 * Java Bean&#x7684;&#x5C5E;&#x6027;
 * <span class="hljs-doctag">@author</span>: TianwYam
 * <span class="hljs-doctag">@date</span> 2021&#x5E74;5&#x6708;5&#x65E5; &#x4E0A;&#x5348;9:15:01
 */</span>
<span class="hljs-meta">@Data</span>
<span class="hljs-meta">@Builder</span>
<span class="hljs-keyword">public</span> <span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">JavaBeanAttribute</span> </span>{

    <span class="hljs-comment">// &#x5C5E;&#x6027;&#x540D;&#x79F0;</span>
    <span class="hljs-keyword">private</span> String attrName ;

    <span class="hljs-comment">// &#x7C7B;&#x578B;</span>
    <span class="hljs-keyword">private</span> String attrType ;

    <span class="hljs-comment">// &#x6CE8;&#x91CA;</span>
    <span class="hljs-keyword">private</span> String attrComment;

}
</code></pre>
<h3 id="4-&#x5236;&#x5B9A;&#x751F;&#x6210;java&#x7C7B;&#x7684;&#x6A21;&#x677F;"><a name="4-&#x5236;&#x5B9A;&#x751F;&#x6210;java&#x7C7B;&#x7684;&#x6A21;&#x677F;" class="anchor-navigation-ex-anchor" href="#4-&#x5236;&#x5B9A;&#x751F;&#x6210;java&#x7C7B;&#x7684;&#x6A21;&#x677F;"><i class="fa fa-link" aria-hidden="true"></i></a>4. &#x5236;&#x5B9A;&#x751F;&#x6210;Java&#x7C7B;&#x7684;&#x6A21;&#x677F;</h3>
<p>javaBeanGenerate.ftl &#x63CF;&#x8FF0;&#x751F;&#x6210;&#x7684;Java&#x7C7B;&#x7684;free marker&#x6A21;&#x677F;</p>
<pre><code class="lang-velocity">package ${packageName} ;

&lt;#if importClassList?? &amp;&amp; (importClassList?size &gt; 0) &gt;
&lt;#list importClassList as importClass&gt;
import ${importClass} ;
&lt;/#list&gt;
&lt;/#if&gt;

import lombok.Data ;


@Data
public class ${className} {

&lt;#if attributes?? &amp;&amp; (attributes?size &gt; 0) &gt;
    &lt;#list attributes as attr&gt;

        // ${attr.attrComment}
        private ${attr.attrType} ${attr.attrName} ;

    &lt;/#list&gt;
&lt;/#if&gt;


}
</code></pre>
<h3 id="5-&#x6D4B;&#x8BD5;&#x751F;&#x6210;java&#x7C7B;"><a name="5-&#x6D4B;&#x8BD5;&#x751F;&#x6210;java&#x7C7B;" class="anchor-navigation-ex-anchor" href="#5-&#x6D4B;&#x8BD5;&#x751F;&#x6210;java&#x7C7B;"><i class="fa fa-link" aria-hidden="true"></i></a>5. &#x6D4B;&#x8BD5;&#x751F;&#x6210;Java&#x7C7B;</h3>
<p>&#x6B64;&#x5904;&#x6A21;&#x62DF;&#x7684;&#x6570;&#x636E;&#xFF0C;&#x76F4;&#x63A5;&#x5199;&#x6B7B;&#x7684;&#xFF0C;&#x5B9E;&#x9645;&#x60C5;&#x51B5;&#xFF0C;&#x5E94;&#x8BE5;&#x8BFB;&#x53D6;&#x6570;&#x636E;&#x5E93;&#xFF0C;&#x6839;&#x636E;&#x5EFA;&#x8868;&#x8BED;&#x53E5;&#x751F;&#x6210;</p>
<pre><code class="lang-java">
<span class="hljs-comment">/**
 * <span class="hljs-doctag">@Description</span>: 
 * &#x81EA;&#x52A8;&#x751F;&#x6210;&#x4EE3;&#x7801; &#x5DE5;&#x5177;&#x7C7B;
 * <span class="hljs-doctag">@author</span>: TianwYam
 * <span class="hljs-doctag">@date</span> 2021&#x5E74;5&#x6708;5&#x65E5; &#x4E0A;&#x5348;9:11:42
 */</span>
<span class="hljs-keyword">public</span> <span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">AutoGenerateCodeUtils</span> </span>{

    <span class="hljs-comment">/**
     * <span class="hljs-doctag">@Description</span>: 
     * &#x751F;&#x6210;JavaBean&#x4EE3;&#x7801;
     * <span class="hljs-doctag">@author</span>: TianwYam
     * <span class="hljs-doctag">@date</span> 2021&#x5E74;5&#x6708;5&#x65E5; &#x4E0A;&#x5348;9:53:27
     */</span>
    <span class="hljs-function"><span class="hljs-keyword">public</span> <span class="hljs-keyword">static</span> <span class="hljs-keyword">void</span> <span class="hljs-title">generateCode</span><span class="hljs-params">()</span> </span>{

        <span class="hljs-comment">// &#x6D4B;&#x8BD5;&#x6570;&#x636E;&#xFF0C;&#x6A21;&#x62DF;&#x7528;&#x7684;</span>
        <span class="hljs-comment">// &#x5B9E;&#x9645;&#x9879;&#x76EE;&#x4E2D;&#xFF0C;&#x5E94;&#x8BE5;&#x8BFB;&#x53D6;&#x6570;&#x636E;&#x5E93;</span>

        <span class="hljs-comment">//&#x5B9A;&#x4E49;&#x5C5E;&#x6027;</span>
        List&lt;JavaBeanAttribute&gt; attributes = <span class="hljs-keyword">new</span> ArrayList&lt;&gt;();
        attributes.add(JavaBeanAttribute.builder().attrName(<span class="hljs-string">&quot;id&quot;</span>).attrType(<span class="hljs-string">&quot;int&quot;</span>).attrComment(<span class="hljs-string">&quot;&#x4E3B;&#x952E;&quot;</span>).build());
        attributes.add(JavaBeanAttribute.builder().attrName(<span class="hljs-string">&quot;name&quot;</span>).attrType(<span class="hljs-string">&quot;String&quot;</span>).attrComment(<span class="hljs-string">&quot;&#x6559;&#x5E08;&#x59D3;&#x540D;&quot;</span>).build());
        attributes.add(JavaBeanAttribute.builder().attrName(<span class="hljs-string">&quot;sex&quot;</span>).attrType(<span class="hljs-string">&quot;int&quot;</span>).attrComment(<span class="hljs-string">&quot;&#x6027;&#x522B;&quot;</span>).build());
        attributes.add(JavaBeanAttribute.builder().attrName(<span class="hljs-string">&quot;birthDate&quot;</span>).attrType(<span class="hljs-string">&quot;Date&quot;</span>).attrComment(<span class="hljs-string">&quot;&#x51FA;&#x751F;&#x65E5;&#x671F;&quot;</span>).build());

        <span class="hljs-comment">// Java bean &#x751F;&#x6210; teacher &#x8001;&#x5E08;</span>
        JavaBeanGenerate generate = JavaBeanGenerate.builder()
                .className(<span class="hljs-string">&quot;Teacher&quot;</span>)
                .packageName(<span class="hljs-string">&quot;com.tianya.springboot.freemarker.code&quot;</span>)
                .attributes(attributes)
                .importClassList(Arrays.asList(<span class="hljs-string">&quot;java.util.Date&quot;</span>))
                .path(<span class="hljs-string">&quot;D:\\javaWork\\spring-boot-learn\\spring-boot-learn-freemarker\\src\\main\\java\\com\\tianya\\springboot\\freemarker\\code\\Teacher.java&quot;</span>)
                .build();

        <span class="hljs-comment">// &#x751F;&#x6210;Java bean</span>
        FreeMarkerUtils.fillTemplate(generate.getPath(), <span class="hljs-string">&quot;javaBeanGenerate.ftl&quot;</span>, generate);

    }




    <span class="hljs-function"><span class="hljs-keyword">public</span> <span class="hljs-keyword">static</span> <span class="hljs-keyword">void</span> <span class="hljs-title">main</span><span class="hljs-params">(String[] args)</span> </span>{

        generateCode();

    }

}
</code></pre>
<p>FreeMarkerUtils &#x5DE5;&#x5177;&#x7C7B;&#xFF0C;&#x6839;&#x636E;&#x6A21;&#x677F;&#x6587;&#x4EF6;&#xFF0C;&#x586B;&#x5145;&#x6570;&#x636E;</p>
<pre><code class="lang-java"><span class="hljs-comment">/**
 * <span class="hljs-doctag">@Description</span>: 
 *  &#x586B;&#x5145;&#x6A21;&#x677F;&#xFF0C;&#x8F93;&#x51FA;&#x6587;&#x4EF6;
 * <span class="hljs-doctag">@author</span>: TianwYam
 * <span class="hljs-doctag">@date</span> 2021&#x5E74;5&#x6708;4&#x65E5; &#x4E0A;&#x5348;9:41:37
 * <span class="hljs-doctag">@param</span> outputFilePath &#x586B;&#x5145;&#x540E;&#x7684;&#x6587;&#x4EF6;&#x8F93;&#x51FA;&#x7684;&#x5168;&#x8DEF;&#x5F84;
 * <span class="hljs-doctag">@param</span> templateName &#x6A21;&#x677F;&#x7684;&#x540D;&#x79F0;
 * <span class="hljs-doctag">@param</span> data &#x9700;&#x8981;&#x586B;&#x5145;&#x7684;&#x6570;&#x636E;
 */</span>
<span class="hljs-function"><span class="hljs-keyword">public</span> <span class="hljs-keyword">static</span> <span class="hljs-keyword">void</span> <span class="hljs-title">fillTemplate</span><span class="hljs-params">(String outputFilePath, String templateName, Object data)</span> </span>{

    Template template = getTemplate(templateName);
    <span class="hljs-keyword">if</span> (template != <span class="hljs-keyword">null</span>) {
        <span class="hljs-keyword">try</span> {
            template.process(data, <span class="hljs-keyword">new</span> FileWriter(outputFilePath));
            LOG.info(<span class="hljs-string">&quot;&#x751F;&#x6210;word&#x6587;&#x4EF6;&#x6210;&#x529F;&quot;</span>);
        } <span class="hljs-keyword">catch</span> (TemplateException | IOException e) {
            LOG.error(<span class="hljs-string">&quot;&#x751F;&#x6210;word&#x6587;&#x4EF6;&#x5931;&#x8D25;&quot;</span>, e);
        }
    }

}
</code></pre>
<h3 id="6-&#x751F;&#x6210;java&#x7C7B;&#x6548;&#x679C;"><a name="6-&#x751F;&#x6210;java&#x7C7B;&#x6548;&#x679C;" class="anchor-navigation-ex-anchor" href="#6-&#x751F;&#x6210;java&#x7C7B;&#x6548;&#x679C;"><i class="fa fa-link" aria-hidden="true"></i></a>6. &#x751F;&#x6210;Java&#x7C7B;&#x6548;&#x679C;</h3>
<p>Teacher &#x7C7B;</p>
<pre><code class="lang-java"><span class="hljs-keyword">package</span> com.tianya.springboot.freemarker.code ;

<span class="hljs-keyword">import</span> java.util.Date ;

<span class="hljs-keyword">import</span> lombok.Data ;


<span class="hljs-meta">@Data</span>
<span class="hljs-keyword">public</span> <span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">Teacher</span> </span>{


        <span class="hljs-comment">// &#x4E3B;&#x952E;</span>
        <span class="hljs-keyword">private</span> <span class="hljs-keyword">int</span> id ;


        <span class="hljs-comment">// &#x6559;&#x5E08;&#x59D3;&#x540D;</span>
        <span class="hljs-keyword">private</span> String name ;


        <span class="hljs-comment">// &#x6027;&#x522B;</span>
        <span class="hljs-keyword">private</span> <span class="hljs-keyword">int</span> sex ;


        <span class="hljs-comment">// &#x51FA;&#x751F;&#x65E5;&#x671F;</span>
        <span class="hljs-keyword">private</span> Date birthDate ;

}
</code></pre>
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